China Aluminum Doors and Windows are authorized to check the anti-counterfeiting code. Chinalco doors and windows have their own nameplates, labels, and sizes. They are all branded aluminum alloy manufacturers. They will mark their company's name on the products, have their own trademarks on the profiles and packaging, and are plated with the manufacturer's anti-counterfeiting Logo, the identity code belonging to this door and window is printed on the door and window, showing the identity of the product.